Generally the easiest way of finding out the time of conception is to contact a qualified doctor who can easily determine it through fool proof methods. The doctor is a reliable and the most credible source of finding out this information. A doctor finds out the date of conception because it helps him/her while determining or setting the date of delivery though it might not be accurate and can be a little longer or before the given date.
But supposing one wants to find out the date and time of conception oneself then the key is to study the concerned woman's cycle. A woman is most likely to get pregnant for two weeks in the middle of the cycle. In other words, one week after their last period started until one week before their next is the most likely time. So if sexual intercourse took place during this time then it is most likely to be the time of conception. This is the time when women ovulate the most. It may also happen many days before the ovulating time because the sperm can survive for up to 5 to 7 days.
But supposing one wants to find out the date and time of conception oneself then the key is to study the concerned woman's cycle. A woman is most likely to get pregnant for two weeks in the middle of the cycle. In other words, one week after their last period started until one week before their next is the most likely time. So if sexual intercourse took place during this time then it is most likely to be the time of conception. This is the time when women ovulate the most. It may also happen many days before the ovulating time because the sperm can survive for up to 5 to 7 days.